Preparation of carboxylic acids or their salts, halides or anhydrides

CCHEMISTRY METALLURGY C07Organic chemistry C07CACYCLIC OR CARBOCYCLIC COMPOUNDS

C07C51/00Preparation of carboxylic acids or their salts, halides or anhydrides

C07C51/02from salts of carboxylic acids C07C51/04from carboxylic acid halides C07C51/06from carboxylic acid amides C07C51/08from nitriles C07C51/083from carboxylic acid anhydrides C07C51/087by hydrolysis C07C51/09from carboxylic acid esters or lactones C07C51/093by hydrolysis of -CX3 groups, X being halogen C07C51/097from or via nitro-substituted organic compounds C07C51/10by reaction with carbon monoxide C07C51/12on an oxygen-containing group in organic compounds C07C51/14on a carbon-to-carbon unsaturated bond in organic compounds C07C51/145with simultaneous oxidation C07C51/15by reaction of organic compounds with carbon dioxide C07C51/16by oxidation C07C51/21with molecular oxygen C07C51/215of saturated hydrocarbyl groups C07C51/225of paraffin waxes C07C51/23of oxygen-containing groups to carboxyl groups C07C51/235of -CHO groups or primary alcohol groups C07C51/245of keto groups or secondary alcohol groups C07C51/25of unsaturated compounds containing no six-membered aromatic ring C07C51/252of propene, butenes, acrolein or methacrolein C07C51/255of compounds containing six-membered aromatic rings without ring-splitting C07C51/265having alkyl side chains which are oxidised to carboxyl groups C07C51/27with oxides of nitrogen or nitrogen-containing mineral acids C07C51/275of hydrocarbyl groups C07C51/285with peroxy-compounds C07C51/29with halogen-containing compounds which may be formed in situ C07C51/295with inorganic bases C07C51/305with sulfur or sulfur-containing compounds C07C51/31of cyclic compounds with ring-splitting C07C51/313with molecular oxygen C07C51/316with oxides of nitrogen or nitrogen-containing mineral acids C07C51/34by oxidation with ozone by hydrolysis of ozonides C07C51/347by reactions not involving formation of carboxyl groups C07C51/353by isomerisation by change of size of the carbon skeleton C07C51/36by hydrogenation of carbon-to-carbon unsaturated bonds C07C51/363by introduction of halogen by substitution of halogen atoms by other halogen atoms C07C51/367by introduction of functional groups containing oxygen only in singly bound form C07C51/373by introduction of functional groups containing oxygen only in doubly bound form C07C51/377by splitting-off hydrogen or functional groups by hydrogenolysis of functional groups C07C51/38by decarboxylation C07C51/41Preparation of salts of carboxylic acids C07C51/412by conversion of the acids, their salts, esters or anhydrides with the same carboxylic acid part C07C51/414Preparation of superbasic salts C07C51/416Henkel reaction and related reactions, i.e. rearrangement of carboxylate salt groups linked to six-membered aromatic rings, in the absence or in the presence of CO or CO2, ( C07C51/418Preparation of metal complexes containing carboxylic acid moieties C07C51/42Separation Purification Stabilisation Use of additives C07C51/43by change of the physical state C07C51/44by distillation C07C51/445by steam distillation C07C51/46by azeotropic distillation C07C51/47by solid-liquid treatment by chemisorption C07C51/48by liquid-liquid treatment C07C51/487by treatment giving rise to chemical modification C07C51/493whereby carboxylic acid esters are formed C07C51/50Use of additives C07C51/54Preparation of carboxylic acid anhydrides C07C51/56from organic acids, their salts, their esters or their halides C07C51/567by reactions not involving carboxylic acid anhydride groups C07C51/573Separation Purification Stabilisation Use of additives C07C51/58Preparation of carboxylic acid halides C07C51/60by conversion of carboxylic acids or their anhydrides or esters, lactones, salts into halides with the same carboxylic acid part C07C51/62by reactions not involving the carboxylic acid halide group C07C51/64Separation Purification Stabilisation Use of additives